import re
pattern=r'(shabi)|(niuma)|(spy)|(trojan)'
about='每个人都要努力活成自己想要成为的样子，不要活成niuma'
match=re.search(pattern,about)
if match==None:
    print(about,'safe')
else:
    print(about,'----warning! 出现了危险词汇')
about='the vast world can develop a man to the full'
match=re.search(pattern,about)
if match==None:
    print(about,'safe')
else:
    print(about,'-----waring 出现了危险词汇')